package com.rainbow.support.message.notify.email;

import lombok.AllArgsConstructor;
import lombok.Data;
import lombok.NoArgsConstructor;
import lombok.extern.slf4j.Slf4j;
import org.springframework.boot.autoconfigure.mail.MailProperties;
import org.springframework.core.io.FileSystemResource;
import org.springframework.mail.SimpleMailMessage;
import org.springframework.mail.javamail.JavaMailSender;
import org.springframework.mail.javamail.MimeMessageHelper;
import javax.mail.MessagingException;
import javax.mail.internet.MimeMessage;
import java.io.File;

/**
 * @author 付为地
 *  邮件工具类
 */
@Slf4j
@Data
@AllArgsConstructor
@NoArgsConstructor
public class MailTemplate {

    private JavaMailSender mailSender;

    private MailProperties mailProperties;

    /**
     * 发送文本邮件
     * @param to 邮件接收方
     * @param subject 主题
     * @param content 内容
     */
    public void sendSimpleMail(String to, String subject, String content) {
        try {
            SimpleMailMessage message = new SimpleMailMessage();
            message.setFrom(mailProperties.getUsername());
            message.setTo(to);
            message.setSubject(subject);
            message.setText(content);
            mailSender.send(message);
            log.info("简单邮件已经发送。");
        } catch (Exception e) {
            log.error("发送简单邮件时发生异常!", e);
        }

    }

    /**
     * 发送html邮件
     * @param to 邮件接收方
     * @param subject 主题
     * @param content 内容
     */
    public void sendHtmlMail(String to, String subject, String content) {
        try {
            MimeMessage message = mailSender.createMimeMessage();
            //true表示需要创建一个multipart message
            MimeMessageHelper helper = new MimeMessageHelper(message, true);
            helper.setFrom(mailProperties.getUsername());
            helper.setTo(to);
            helper.setSubject(subject);
            helper.setText(content, true);
            mailSender.send(message);
            log.info("html邮件发送成功");
        } catch (MessagingException e) {
            log.error("发送html邮件时发生异常!", e);
        }
    }


    /**
     * 发送带附件的邮件
     * @param to 邮件接收方
     * @param subject 主题
     * @param content 内容
     * @param filePath 文件路径
     */
    public void sendAttachmentsMail(String to, String subject, String content, String filePath){
        try {
            MimeMessage message = mailSender.createMimeMessage();
            MimeMessageHelper helper = new MimeMessageHelper(message, true);
            helper.setFrom(mailProperties.getUsername());
            helper.setTo(to);
            helper.setSubject(subject);
            helper.setText(content, true);

            FileSystemResource file = new FileSystemResource(new File(filePath));
            String fileName = filePath.substring(filePath.lastIndexOf(File.separator));
            helper.addAttachment(fileName, file);
            mailSender.send(message);
            log.info("带附件的邮件已经发送。");
        } catch (MessagingException e) {
            log.error("发送带附件的邮件时发生异常!", e);
        }
    }


    /**
     * 发送正文中有静态资源（图片）的邮件
     * @param to 邮件接收方
     * @param subject 主题
     * @param content 内容
     * @param rscPath 图片地址
     * @param rscId 图片id
     */
    public void sendInlineResourceMail(String to, String subject, String content, String rscPath, String rscId) {
        try {
            MimeMessage message = mailSender.createMimeMessage();
            MimeMessageHelper helper = new MimeMessageHelper(message, true);
            helper.setFrom(mailProperties.getUsername());
            helper.setTo(to);
            helper.setSubject(subject);
            helper.setText(content, true);

            FileSystemResource res = new FileSystemResource(new File(rscPath));
            helper.addInline(rscId, res);

            mailSender.send(message);
            log.info("嵌入静态资源的邮件已经发送。");
        } catch (MessagingException e) {
            log.error("发送嵌入静态资源的邮件时发生异常!", e);
        }
    }
}
